CVE-2006-1856

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2006-05-19 · updated 2026-06-16

Description

Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions.

Affected products

Linux kernel: 2.6.0, 2.6.0-test1, 2.6.0-test10, 2.6.0-test11, 2.6.0-test2, 2.6.0-test3 (+72)

References

http://lists.jammed.com/linux-security-module/2005/09/0019.html
http://secunia.com/advisories/20237
http://secunia.com/advisories/20716
http://secunia.com/advisories/21045
http://secunia.com/advisories/21745
http://secunia.com/advisories/22093
http://support.avaya.com/elmodocs2/security/ASA-2006-161.htm
http://www.debian.org/security/2006/dsa-1184
http://www.mandriva.com/security/advisories?name=MDKSA-2006:123
http://www.osvdb.org/25747
http://www.redhat.com/support/errata/RHSA-2006-0493.html
http://www.securityfocus.com/bid/18105

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